How to apply for a new millennia dc online in hdfc

[Ram1]

Money back debit card is already showing in active debit cards section so it should get delivered in 2-3 days

Yup thats how it works. Now u can upgrade ur dc to millenia but sadly u have to pay for millenia dc too.
You should have said u want millenia while account opening.
They simply need to fill code vlc50 on the form.